Public Delegate Sub NavigationProgressEventHandler ( _
    sender As Object, _
    e As NavigationProgressEventArgs _
)

public delegate void NavigationProgressEventHandler(
    Object sender,
    NavigationProgressEventArgs e
)

public delegate void NavigationProgressEventHandler(
    Object^ sender, 
    NavigationProgressEventArgs^ e
)

type NavigationProgressEventHandler = 
    delegate of 
        sender:Object * 
        e:NavigationProgressEventArgs -> unit